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Posted to issues@hive.apache.org by "Eugene Koifman (JIRA)" <ji...@apache.org> on 2018/10/22 21:14:00 UTC

[jira] [Commented] (HIVE-18045) can VectorizedOrcAcidRowBatchReader be used all the time

    [ https://issues.apache.org/jira/browse/HIVE-18045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16659680#comment-16659680 ] 

Eugene Koifman commented on HIVE-18045:
---------------------------------------

make sure VirtualColumn like INPUT__FILE__NAME continue to work

> can VectorizedOrcAcidRowBatchReader be used all the time
> --------------------------------------------------------
>
>                 Key: HIVE-18045
>                 URL: https://issues.apache.org/jira/browse/HIVE-18045
>             Project: Hive
>          Issue Type: Improvement
>          Components: Transactions
>            Reporter: Eugene Koifman
>            Assignee: Eugene Koifman
>            Priority: Blocker
>
> Can we use VectorizedOrcAcidRowBatchReader for non-vectorized queries?
> It would just need a wrapper on top of it to turn VRBs into rows.
> This would mean there is just 1 acid reader to maintain - not 2.
> Would this be an issue for sorted reader/SMB support?



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